Peronoceras turriculatum (Simpson 1855)
4cm. Pyrite steinkern. Lower Toarcian, Whitby Mudstone Formation, Bifrons Zone. Ravenscar, Yorkshire, England.
By Ludwigia
4cm. Pyrite steinkern. Lower Toarcian, Whitby Mudstone Formation, Bifrons Zone. Ravenscar, Yorkshire, England.
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